Sucker-rod



D. JONES.

SUGKBR Ron".

(No Model.)

No. 273,234. Patented Feb.27, 1883.

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UNITED STATES PATENTv OFFICE.

DANIEL JONES, OF BOSTON, MASSACHUSETTS.

SUCKER-ROD.

SPECIFICATION forming part of Letters Patent No. 273,234, dated February 27, 1883.

Application filed September 1, 1882. (No model.)

To all whom it may co noem Beitknown thatI, DANIEL JoNEs,of,Boston, in the county of Suffolk and State of Massachusetts, have invented an Improvement in Sucker-Rods; and I do hereby declare the following to bea full and correct description of the same.

This invention relates to an improvement on the sucker-rod joint secured to me by Letters Patent of the United States No. 119,232, September 26, 1871. As constructed under said Letters Patent, a series of annular and longitudinal channels are formed both in the rod and in the inner wall of the socket, and molten metal run into said recesses after the rod has been driven into the socket. Under such construction the socket is required to be of considerable thickness, so as to admit of the channels being formed therein. It is extremely desirable, however, to provide a thin, 1ight and at the same time a strong socket, for the reason that sucker-rods, which work within the limited Vspace afforded by the small-sized tubing used for wells, should havethe diameter ofthe wooden rod decreased as little as possible by reason of the joint, and also, as rods of great lengthare employed, both strength and lightness are extremely desirable. To such end I providethe interior of the socket with isolated longitudinally-arranged projections, which are made in the shape of triangular prisms, whereby a rod having a diameter corresponding to the bore ot' the socket can be driven in the same. thesaid projections cutting in the wood so as to allow the rod to be inserted in the socket. 'The rod is lprovided with one or more annular grooves, and the socket-piece is provided with openings through which molten metal can be poured so as to till the spaces between the socket and the grooved portion or portions of the rod, as hereinafter more fully described, and illustrated in the annexed drawings, in which- Figure l is a perspective view of the socket with a portion broken away, so as to show the prismatic projections. Fi g. 2 represents apor- Iion of the rod. Fig. 3 is a section taken transversely through the socket. Fig. 4 is a longitudinal section through therod and socket tted together.

Referring by letter to the drawings, A indicates the rod, and B the socket. The rod is formed with one or more angular grooves or recesses, C, which extend around the rod. The tubular metal socket B is provided upon its interior with one or more annular series ot' isolated projections, D, which are in the nature of triangular prisms arranged longitudinally within the socket. The tube or socket is screwthreaded at one end for the purpose of coupling it with the socket of the next rod, and it is further provided with openings E, through which molten metal can be poured after the rod has been fitted in the socket. It will be seen that these wedge-shaped or trianuglar prismatical projections D have each a sharp cutting-edge, d, formed longitudinally in the tube and at an angle to the wall thereof', said cutting-edge commencing at the wall and running toward the center of the tube until it termi,- nates at a sharp point formed by the base or attened end d ofthe projection. It will also be observed that the socket is not required to be made thick in order that it may he recessed to form these projections, but that it is'made of equal thickness throughout,it being ofcourse understood that the projections themselves constitute thickened portions atisolated points. The rod, having a diameter equal to that ol' the base of the bore of the socket, is titted in the latter by driving the socket upon the rod until the projections in the socket are at the upper portions ot' the inclined bed ot' the recesses in the rod whereby a space is left between the square end or bases of the prismatic projections and the shoulder formed by the annular recess in the rod. As the socket is driven on the rod, the sharp edges of the projections cut their way into the rod, and by thus imbedding themselves in the rod insure a strong connection between the rod and socket. Molten metal or some possible alloy which will expand in cooling'is now run through tlie openingsin the socket into the recess orre` cesses, thereby iilling up the latter and leaving no space between the shoulder of the recess and the bases ofthe triangular prismatic projections and binding the rod and socket rml y together. The form of these projections admits of their readily forcing their way through the wood, and after the socket has beendriven upon the rod the base portionsof said projections constitute abutments for the metal filling'. n

Having thus described my invention, what I claim isl. In a sucker-rod joint, the tubular metal socket provided with internal isolated wedgeshaped projections having cutting edges, whereby when the said socket is driven upon the rod the projections force their way through the Wood, substantially as described.

2. In a sucker-rodjoint, the perforated tubular socket provided with wedge-shaped or triangular prismatic projections, substantially as described.

3. In a sucker-rod joint, the perforated tubular socket provided with internal isolated Wedgeshaped or prisinatic projections arranged on one or more annular sets, substantially as described.

4. The combination, With a sucker-rod recessed substantially as described, ofthe tubular metal socket provided with internal isolated Wedge-shaped or triangular prismatic projections adapted to force their Way through the Wood when the socket is driven down upon the rod, substantially as described.

The above specification of my said invention signed and witnessed at Boston this 30th day of August, A. D. 1882.

DANIEL JONES. [L s] Witnesses:

E. J. HOWARD, H. F. MACE. 

